
Infotree Service Sweden Filial · Warsaw
Position Summary We are looking for a passionate and experienced Senior Front-End Engineer to join our engineering team and help build modern, scalable, and hi...
Position Summary
We are looking for a passionate and experienced Senior Front-End Engineer to join our engineering team and help build modern,
scalable, and high-performance web applications. You will collaborate with Product Managers, UX Designers, Architects, and fellow
Engineers to transform business requirements into intuitive user experiences while contributing to the technical direction of our
front-end ecosystem.
This role is ideal for someone who enjoys solving complex technical challenges, writing clean and maintainable code, and
continuously learning new technologies in a fast-paced Agile environment.
Key Responsibilities
Front-End Development
Architecture & Engineering
Testing & Quality
Collaboration
Required Qualifications
Experience
Technical Skills
Soft Skills
Preferred Qualifications
What Success Looks Like
🚀 We're Hiring: Full-stack Developer (React/Java) | Financial Services You'll work alongside experienced engineers, building and enhancing business-critical applications used within a front-office trading environment. The platform processes significant trading volumes daily and plays a key role in the firm's success. Requirements: 🔹 4+ years of commercial frontend development experience 🔹 1–2 years of commercial backend development experience (Java or Python) 🔹 Strong React (Hooks, Context API) and JavaScript skills 🔹 Experience with modern CSS (CSS-in-JS, SCSS) 🔹 Knowledge of design patterns, Jest, npm, CI/CD, and GitLab 🔹 Experience building and consuming REST APIs ⭐ Nice to have: • AG Grid • Cypress • Understanding of UX principles • Experience working in financial services or trading environments
Role description: You will be responsible for building and executing challenging projects across a number of initiatives. You will work with key stakeholders, UX Designers, and other development teams to get requirements and convert them into deliverables. You will learn new technologies, working on constantly upgrading your skill-set and the products you work on to be at-par with the best in the industry. You will innovate and solve technical challenges in an effective manner that emphasizes a long-term vision. Skills Relevant Technologies and Concepts: React, Angular, TypeScript, Jest, Cypress, Playwright, Redux, Node.js, CSS-in-JS, SSR, Vite, Vitest REQUIRED QUALIFICATIONS * 5+ years of hands-on experience with some of the latest technologies to build rich web applications * Strong hands-on experience with modern front-end technologies such as React (mandatory), Angular, Typescript, and comfortable learning new languages * Experience with clean code and testing methodologies * Superior interpersonal, communication and organization skills * Ability to work on multiple project simultaneously in a fast-paced, collaborative environment * Self-motivated and self-managed with a high degree of analytical ability, innovation and intellectual curiosity PREFERRED QUALIFICATIONS * Bachelor's degree in Computer Science * Experience working in delivery driven agile SDLC covering research, design and engineering * Experience with micro front ends * Experience with Reactive programming methodologies and frameworks such as RxJS * Experience with front-end build tools and testing libraries including Webpack & Vite Education * Bachelor's degree in Computer Science
HOW YOU WILL FULFILL YOUR POTENTIAL: You will be responsible for building and executing challenging projects across a number of initiatives. You will work with key stakeholders, UX Designers, and other development teams to get requirements and convert them into deliverables. You will learn new technologies, working on constantly upgrading your skill-set and the products you work on to be on par with the best in the industry. You will innovate and solve technical challenges in an effective manner that emphasizes a long-term vision. Skills Relevant Technologies and Concepts: React, Angular, TypeScript, Jest, Cypress, Redux, Node.js, CSS-in-JS, SSR REQUIRED QUALIFICATIONS: • 5+ years of hands-on experience with some of the latest technologies to build rich web applications • Strong hands-on experience with modern front-end technologies such as React (mandatory), Angular, Typescript, and comfortable learning new languages • Experience with clean code and testing methodologies • Superior interpersonal, communication, and organization skills • Ability to work on multiple projects simultaneously in a fast-paced, collaborative environment • Self-motivated and self-managed with a high degree of analytical ability, innovation, and intellectual curiosity PREFERRED QUALIFICATIONS • Bachelor's degree in Computer Science • Experience working in delivery-driven agile SDLC covering research, design, and engineering • Experience with micro front ends • Experience with Reactive programming methodologies and frameworks such as RxJS • Experience with front-end build tools and testing libraries, including Webpack Please note the position required 3 days/week presence in the office in Warsaw city center.